Unit 5 Power of Ideas语法精讲-同步精练2026-2027学年人教版英语九年级上册

该初中英语讲义围绕被动语态构建知识体系，通过表格对比一般现在时、一般过去时和含情态动词的被动语态，清晰呈现结构、用法及例句，分步骤解析主动变被动的转换方法，重点标注双宾语转换等难点，形成系统知识脉络。 同步精练设计涵盖词汇填空、语法应用、句子翻译及语篇语法填空，如语法填空改编自青藏铁路课文，结合单元主题提升语言运用能力，完成句子题强化被动结构准确性，培养思维品质。分层练习满足不同学生需求，参考答案助力自主复习，为教师精准教学提供有效支持。

Unit 5 Power of Ideas语法精讲-同步精练 语法精讲 被动语态(一) 一、被动语态的构成 基本结构: be 动词+过去分词 二、主动语态变被动语态的步骤： 1. 主动语态的宾语变为被动语态的主语，若主动句中的宾语是人称代词宾格，要将其变为主格； 1. 主动语态的谓语动词变为被动形式； 1. 主动语态的主语变为被动语态中的宾语，主格变成宾格，并由 by 连接。 注意:带双宾语的动词由主动语态变被动语态时，可以将间接宾语或直接宾语转化成主语。若将间接宾语转换成主语，则保留直接宾语；若将直接宾语转化成主语，则保留间接宾语，且前面需要加上表对象的介词 to 或 for。 例: She gave me a pen. (主动语态) → I was given a pen. (间接宾语 I 转化成主语) → A pen was given to me. （直接宾语 a pen 转化成主语） 三、比较一般现在时、一般过去时和含情态动词的被动语态 类型 基本结构 主要用法 例句 一般现在时的被动语态 am/is/are+过去分词 表示现阶段经常性、习惯性的被动动作,或客观事实 The classroom is cleaned every day. These books are written in English. 一般过去时的被动语态 was/were+过去分词 表示过去某个时间发生的被动动作 The bridge was built in 1990. The letters were sent yesterday. 含情态动词的被动语态 情态动词+be+过去分词 表示带有情感、态度、推测等的被动动作 The work must be finished today. This problem can be solved easily. 要点说明： 1. 一般现在时与一般过去时的被动语态，区别仅在于 be 动词的时态，过去分词形式不变。 1. 情态动词被动语态中，情态动词后永远接“be+过去分词”，be不随主语变化。 同步精练 一、根据句意及汉语或音标提示填空 1. Many people ________ (推断) that the girl was saved by the young man. 1. ________ (东方的) culture brings us warm peace and gentle inner power. 1. The invention of the ________ (车轮) was a great step forward in human history. 1. In winter, the lake is ________ /’frəʊzn/ and people can skate on it. 1. The cake has a thick ________ (层) of chocolate cream on top. 二、用括号内所给词的适当形式填空 1. The snow on the ground slowly ________ (melt) when the sun came out yesterday afternoon. 1. All the broken water ________ (pipe) under the street were repaired last week. 1. This area achieves fast ________ (economy) development in recent years. 1. More jobs in local ________ (tour) were created after the new airport was built. 1. Valuable experience ________ (gain) by the young scientist during her research last year. 三、根据汉语意思完成句子，每空一词 1. 电话是亚历山大·格雷厄姆·贝尔在 1876 年发明的。 The telephone ________ ________ ________ Alexander Graham Bell in 1876. 1. 打印机需要被正确地连接到电脑上。 The printer needs to ________ ________ ________ the computer correctly. 1. 这种新软件是为提高学生的学习效率而引入的。 This new software ________ ________ ________ improving students’ learning efficiency. 1. 在紧急情况下，这个红色按钮应该被按下以停止机器。 In case of emergency, the red button ________ ________ ________ be pressed to stop the machine. 1. 这种机器被用来打印高质量的照片，并且闻名于世。 This machine is used to print high-quality photos, and it is well-known ________ ________ ________ ________. 1. 所有的书面作业必须在今晚九点之前交给老师。 All the written homework ________ ________ ________ ________ to the teachers by 9 p.m. tonight. 四、语法填空(课文改编) 阅读短文，用括号内所给词的适当形式填空。 The Qinghai-Xizang Railway, a remarkable engineering achievement, 1 ________(complete) in 2006 after five years of hard work. It 2________ (connect) Xining to Lhasa, covering a huge distance of 1,956 kilometres, and it remains the highest railway in the world, 3________ (reach) an astonishing 5,072 metres above sea level at Tanggula Pass. The building of the railway was a great challenge. Creative and practical ideas 4________ (need) to solve the difficult problems caused by the frozen ground. In summer, the top layer of the frozen ground would melt and become too soft to build on, so thousands of pipes 5________ (use) to carry cold air and keep the ground hard. However, in some places, it was impossible to build the railway over the frozen ground, so tunnels had to 6________ (create) instead. In some other places, long bridges 7________ (build) to keep the railway up above the ground. These bridges are carefully designed to be animal-friendly and 8________ (allow) wild animals such as Tibetan antelopes to pass safely under the tracks. As an important and successful project, the railway has greatly 9________ (increase) tourism and economic development in the area. The valuable lessons learnt and the rich experience 10________ (gain) from building this railway will help improve transport in other similar places around the world. 1.________ 2. ________ 3. ________ 4. ________ 5. ________ 6.________ 7. ________ 8. ________ 9. ________ 10. ________ 参考答案 一、1. suppose/think 2. Eastern 3. wheel 4. frozen 5. layer 二、1. melted 2. pipes 3. economic 4. tourism 5. was gained 三、1. was invented by 2. be connected to 3. was introduced for 4. is supposed to 5. all over the world 6. must be handed in 四、1~5 was completed; connects; reaching; were needed; were used 6~10 be created; were built; allow; increased;gained ( 第 1 页 共 4 页 ) 学科网（北京）股份有限公司 $